<!--
 * @name: 
 * @Author: JiaYing
 * @LastEditors: JiaYing
 * @Date: 2022-08-26 00:58:53
 * @LastEditTime: 2022-08-26 01:00:29
 * @Description: 
-->
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
  </head>
  <style>
    .border {
      border-bottom-left-radius: 15px 255px;
      border-bottom-right-radius: 225px 15px;
      border-top-left-radius: 255px 15px;
      border-top-right-radius: 15px 225px;
      border: 2px solid #41403e;
    }
    .box {
      width: 200px;
      height: 200px;
    }
  </style>
  <body>
    <div class="box border"></div>
  </body>
</html>
